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Subnautica 2, which managed to sell a whopping two million copies selling in just 12 hours, is unsurprisingly still making waves – so much so, in fact, that it's beating out the likes of Crimson Desert and Slay the Spire 2 over on Steam.
Rhys Elliott, head of market analysis at Alinea Analytics, reports as much in a new article, revealing that the Subnautica sequel has "already sold 4.1 million copies in its first week, generating $100 million in revenue."
According to the analyst, most of these – four million of them, in fact – sold on Steam, with Xbox selling just under 100,000 copies, but it's important to note that "plenty of Xbox players got their hands on Subnautica 2 thanks to Game Pass."
The total player count is "well over" six million, with Alinea Analytics' estimates showing that, "based on its performance so far (five days in), Subnautica 2 is Steam's fastest-selling 2026 game so far."
Elliott includes a handy little chart comparing Unknow Worlds' gem to other giants this year, like Crimson Desert, Resident Evil Requiem, and Slay the Spire 2 – and boy, does it highlight some impressive figures.
Subnautica 2 is selling 1.4x faster than Slay the Spire 2, nearly 2x faster than Resident Evil Requiem, and a whole 3x faster than Crimson Desert, as per the chart.
"But owing to differences in price, Resident Evil Requiem is the leader in terms of gross revenue with $120 million five days in, versus $96 million for Subnautica 2, $78 million for Crimson Desert, and $58 million for Slay the Spire 2." That checks out.
Subnautica 2 costs just $29.99 while Resident Evil Requiem comes in at $69.99, after all. Nonetheless, these are some seriously nice numbers for Unknown Worlds, especially when you consider that it's an Early Access title on Steam right now.
There's still plenty of content coming, with all the conversation surrounding the Subnautica 2 EULA and ongoing debate about killing fish. The game just got its first hotfix today, so… yeah.
Who knows how the numbers will evolve over time, as developers release updates, DLC, and more – the opportunity for more growth is certainly there. Subnautica 2 is proving to be one of this year's biggest new games already, so it's all quite exciting.
